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Objective: Lead that are common in nature and widely consumed through industry and transportation are leading metals that cause toxicity in humans and other living organisms. The cabin air filters are made out of paper with many layers having the ability to capture particles with nearly one micron size or higher. Aim of this study is to search the trace element pollution in the air, in different regions by analyzing lead concentration in cabin filters of 10 different vehicle marks, obtained from various auto services in the city of Istanbul-Turkey. Methods: All collected filters were initially resolved in the HCl and HNO 3 mixture. Lead levels that had been adsorbed in filters were measured by Atomic Absorption Spectrophotometer (AAS). Results of the study were further analyzed by region where the sample air filters were originally collected. Results : According to our findings, it has been observed that lead levels in 5 th region are maximum compared to the other regions of Istanbul-Turkey. Conclusion : This fact concludes that the used vehicle cabin air filters are one of the best sources to get information about air quality and pollution levels. The results of this research exemplifies and concludes that utilizing replaced cabin filters is an efficient and effective method to measure heavy metals pollution in big cities such as Istanbul, Turkey. Keywords: Heavy Metals, Cabin air filters, Lead (Pb), air pollution Istanbul-Turkey

Lead analysis of air pollution in Istanbul utilizing by the vehicle cabin air filters